220364776 has 8 divisors (see below), whose sum is σ = 413183970. Its totient is φ = 110182384.

The previous prime is 220364773. The next prime is 220364797. The reversal of 220364776 is 677463022.

It is a happy number.

220364776 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 217562500 + 2802276 = 14750^2 + 1674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (220364773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13772791 + ... + 13772806.

Almost surely, 2^220364776 is an apocalyptic number.

It is an amenable number.

220364776 is a deficient number, since it is larger than the sum of its proper divisors (192819194).

220364776 is a wasteful number, since it uses less digits than its factorization.

220364776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27545603 (or 27545599 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 220364776 is about 14844.6884777014. The cubic root of 220364776 is about 604.0145384861.

The spelling of 220364776 in words is "two hundred twenty million, three hundred sixty-four thousand, seven hundred seventy-six".